Authors

George S. Nolas

Document Type

Patent

Publication Date

June 2014

Patent Number

8759662

Abstract

Thermoelectric elements may be used for heat sensors, heat pumps, and thermoelectric generators. A quantum-dot or nano-scale grain size polycrystalline material the effects of size-quantization are present inside the nanocrystals. A thermoelectric element composed of densified Groups IV-VI material, such as calcogenide-based materials are doped with metal or chalcogenide to form interference barriers form along grains. The dopant used is either silver or sodium. These chalcogenide materials form nanoparticles of highly crystal grains, and may specifically be between 1- and 100 nm. The compound is densified by spark plasma sintering.

Application Number

12/417,326

Assignees

University of South Florida

Filing Date

04/02/2009

Primary/U.S. Class

136/238

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